100-Days-Of-DevOps-Challenge-KodeKloud

Using Ansible Conditions

The Nautilus DevOps team had a discussion about, how they can train different team members to use Ansible for different automation tasks. There are numerous ways to perform a particular task using Ansible, but we want to utilize each aspect that Ansible offers. The team wants to utilise Ansible’s conditionals to perform the following task:

An inventory file is already placed under /home/thor/ansible directory on jump host, with all the Stratos DC app servers included.

Create a playbook /home/thor/ansible/playbook.yml and make sure to use Ansible’s when conditionals statements to perform the below given tasks.

Copy blog.txt file present under /usr/src/itadmin directory on jump host to App Server 1 under /opt/itadmin directory. Its user and group owner must be user tony and its permissions must be 0655 .
Copy story.txt file present under /usr/src/itadmin directory on jump host to App Server 2 under /opt/itadmin directory. Its user and group owner must be user steve and its permissions must be 0655 .
Copy media.txt file present under /usr/src/itadmin directory on jump host to App Server 3 under /opt/itadmin directory. Its user and group owner must be user banner and its permissions must be 0655.

NOTE:

You can use ansible_nodename variable from gathered facts with when condition. Additionally, please make sure you are running the play for all hosts i.e use - hosts: all.
Validation will try to run the playbook using command ansible-playbook -i inventory playbook.yml, so please make sure the playbook works this way without passing any extra arguments.

Steps

Move into ansible directory and check files
```
 cd ansible
 ls -la
 cat inventory
```
Create an empty playbook.yml file
```
 touch playbook.yml
```
Update playbook.yml with the contents from this YAML file
- Make sure you have update src path and mode based on your task description

Run the playbook

 ansible-playbook -i inventory playbook.yml

Verify
- login into each app server and run the command
```
 ls -la /opt/itadmin
```

Good to Know

Ansible Facts: ansible_nodename is an automatically gathered fact that contains the hostname of the target machine
When Conditions: Use when: clause to conditionally execute tasks based on facts, variables, or expressions
Fact Gathering: Ansible automatically gathers facts about target hosts unless disabled with gather_facts: no
Conditional Operators: Support for ==, !=, in, not in, is defined, is not defined
Multiple Conditions: Use and, or operators to combine multiple conditions
File Permissions: Octal notation (0655) sets read/write for owner, read/execute for group and others

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